Insulator



(No Model.)

W. 0. BROWN.

INSULATOR.

Patented Feb. 19, 1889.

WITNESSES: W/

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UNITED STATES PATENT OFFICE.

WARREN C. BROIVN, OF TARRYTOVN, XEIV YORK.

INSULATOR.

SPECIFICATION forming part: of Letters Patent No. 398,025, dated February 1 188 Applieation filedDecember 28, 1888. Serial No. 294,832. (No model To aZZ whom it may concern.-

Be it known that I, \VARREN (1. BROWN, of 'larrytown, in the county of Vestchester and State of New York, have invented a new and Improved Insulator, of which the following is a specification, reference being had to the annexed drawings, forming a part thereof, in which Figure 1 is an end elevation of myimproved insulator. Fig. 2 is a side elevation of the same. Fig. 3 is a side elevation taken at right angles to the plane of Fig. 2, and Fig. l is a side elevation of one-half of the insulator.

Similar letters of reference indicate corresponding parts in all the views.

simple and ettieient insulator for receiving electrical conductors and holdingthein firmly without; the necessity of using landing-wires or of twisting them together.

My invention consistsin an insulator t'ormed of two halves, each provided with a semicircular groove, one half being furnished with a lug and the other with a recess for causing the grooves of the two halves to register and clamp upon the wire.

My improved insulator consists of the two halves A B, which together form a cylinder, with a transverse aperture, (1, for receiving the wire I), and with an axial countersunk hole, 0, for receiving the screw d, which supports the insulator in the position of use. The halves A 15 of the insulator are each provided with a semicircular groove, 2, the two grooves when the halves ot the insulator are clamped together forming the transverse aperture (I for receiving the wire I).

A recess, f, of trapezoidal shape, formed in the part B of the insulator to cause the way the distance from the wire I) to the screw (Z is increased, so that an ordinary batterycurrent could under no circumstances leap ott t0 the screw. This construction also prevents 3 the entrance of moisture into the portion of the insulator where the screw passes the di- The object of my invention is to provide a Q vision line of the two parts of the insulator.

My improved insulator may he made of glass, porcelain, vulcanite, or any of the materials usually employed for this purpose.

Having thus described my invention, I claim as new and desire to secure hylmttiers Patent- 1. An insulator termed of the two halves A I bored axially and adapted to receive the screw 1?, one half being furnished with the recess fand the other halt lieing provided with a projection, g, titted to the rec ss and adapted to shut ot't' leakage from the wire to the screw, sulilstantially as specified.

2. As an improved article of manufacture, an insulator formed of the halves A B, provided with the semicircular grooves e, the part B being provided with a recess,f, and the part A having a projection, g, which extends beyond the screw-hole c,suhstantially as specitied.

WARREN C. BROWN.

Witnesses:

GEO. M. HOPKINS, C, SEDewIcK. 

